carb/fuel question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

silvertip67 · 12-13-2010, 12:01 PM

I have a '67 3/4 ton 4WD P/U CSTwith a 327 250hp, w/ a "squarejet" carb...I moved from high country in Colorado to Virginia...had to adjust the air/fuel mixture...seemed fine then started experiencing some hesitation and sputters out of the blue...

fuel pump was replaced last spring , and fuel filter is OK...rebuilt carb to some satisfaction, but sputters are still there sometimes as is cutoff...is it possible a rebuilt fuel pump would act this way before total failure??(12k miles)

timing and all other issues seem OK...this is an original truck/engine combo w/ only 70K miles on it...so any thought would be appreciated...ted

12-13-2010, 12:01 PM	#1
silvertip67 Registered User Join Date: May 2010 Location: pine colorado Posts: 89	carb/fuel question I have a '67 3/4 ton 4WD P/U CSTwith a 327 250hp, w/ a "squarejet" carb...I moved from high country in Colorado to Virginia...had to adjust the air/fuel mixture...seemed fine then started experiencing some hesitation and sputters out of the blue... fuel pump was replaced last spring , and fuel filter is OK...rebuilt carb to some satisfaction, but sputters are still there sometimes as is cutoff...is it possible a rebuilt fuel pump would act this way before total failure??(12k miles) timing and all other issues seem OK...this is an original truck/engine combo w/ only 70K miles on it...so any thought would be appreciated...ted Last edited by silvertip67; 12-13-2010 at 12:15 PM.

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